42606253 has 2 divisors, whose sum is σ = 42606254. Its totient is φ = 42606252.

The previous prime is 42606251. The next prime is 42606283. The reversal of 42606253 is 35260624.

It is a happy number.

42606253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40934404 + 1671849 = 6398^2 + 1293^2 .

It is a cyclic number.

It is not a de Polignac number, because 42606253 - 2¹ = 42606251 is a prime.

Together with 42606251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42606251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21303126 + 21303127.

It is an arithmetic number, because the mean of its divisors is an integer number (21303127).

Almost surely, 2^42606253 is an apocalyptic number.

It is an amenable number.

42606253 is a deficient number, since it is larger than the sum of its proper divisors (1).

42606253 is an equidigital number, since it uses as much as digits as its factorization.

42606253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 42606253 is about 6527.3465512412. The cubic root of 42606253 is about 349.2671823695.

Adding to 42606253 its reverse (35260624), we get a palindrome (77866877).

The spelling of 42606253 in words is "forty-two million, six hundred six thousand, two hundred fifty-three".